137603960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 334756800

約数和(自身を除く): 197152840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 409, 520, 647, 818, 1294, 1636, 2045, 2588, 3235, 3272, 4090, 5176, 5317, 6470, 8180, 8411, 10634, 12940, 16360, 16822, 21268, 25880, 26585, 33644, 42055, 42536, 53170, 67288, 84110, 106340, 168220, 212680, 264623, 336440, 529246, 1058492, 1323115, 2116984, 2646230, 3440099, 5292460, 6880198, 10584920, 13760396, 17200495, 27520792, 34400990, 68801980, 137603960]

約数ペア:

[(1, 137603960), (2, 68801980), (4, 34400990), (5, 27520792), (8, 17200495), (10, 13760396), (13, 10584920), (20, 6880198), (26, 5292460), (40, 3440099), (52, 2646230), (65, 2116984), (104, 1323115), (130, 1058492), (260, 529246), (409, 336440), (520, 264623), (647, 212680), (818, 168220), (1294, 106340), (1636, 84110), (2045, 67288), (2588, 53170), (3235, 42536), (3272, 42055), (4090, 33644), (5176, 26585), (5317, 25880), (6470, 21268), (8180, 16822), (8411, 16360), (10634, 12940)]